yeah, i guess you're right. Renata probably doesn't even have a choice in the matter, Aro just needs her, so he uses Chelsea's power to keep her. Chelsea may be able to make Renata want to serve Aro, but she can't make her a strong bodyguard

"quite a pity how things turned out, isn't it?" -Jane, Eclipse

something you didn't know about the Volturi: Felix has a medical condition. it's called Obsessive Winking Disorder. don't tell him i told you